• Publications
  • Influence
The European Photon Imaging Camera on XMM-Newton: The pn-CCD camera
The European Photon Imaging Camera (EPIC) consortium has provided the focal plane instruments for the three X-ray mirror systems on XMM-Newton. Two cameras with a reflecting grating spectrometer inExpand
Molecules at z = 0.89 - A 4-mm-rest-frame absorption-line survey toward PKS 1830−211
We present the results of a 7 mm spectral survey of molecular absorption lines originating in the disk of a z = 0.89 spiral galaxy located in front of the quasar PKS 1830-211. Our survey wasExpand
SEARCHING FOR DUST IN THE INTRACLUSTER MEDIUM FROM REDDENING OF BACKGROUND GALAXIES
We report a search for the presence of dust in the intracluster medium based on the study of statistical reddening of background galaxies. Armed with the Red-sequence Cluster Survey data, from whichExpand
Strong Limit on a Variable Proton-to-Electron Mass Ratio from Molecules in the Distant Universe
TLDR
Comparing the available ammonia spectra observed toward the quasar B0218+357 with new, high-quality rotational spectra, this work presents the first detailed measurement of μ with this technique, limiting relative deviations from the laboratory value to |Δμ/μ| < 1.8 × 10–6 (95% confidence level). Expand
Detection of HCN, HCO+, and HNC in the Mrk 231 molecular outflow. Dense molecular gas in the AGN wind
We obtained high-resolution (1.''55 × 1.''28) observations of HCN, HCO+, HNC 1-0 and HC3N 10-9 of the ultraluminous galaxy (ULIRG) Mrk 231 with the IRAM Plateau de Bure Interferometer. Results: WeExpand
Molecular line emission in NGC 1068 imaged with ALMA: I. An AGN-driven outflow in the dense molecular gas
Aims. We investigate the fueling and the feedback of star formation and nuclear activity in NGC 1068, a nearby (D = 14 Mpc) Seyfert 2 barred galaxy, by analyzing the distribution and kinematics ofExpand
The density, the cosmic microwave background, and the proton-to-electron mass ratio in a cloud at redshift 0.9
Based on measurements with the Effelsberg 100-m telescope, a multi-line study of molecular species is presented toward the gravitational lens system PKS 1830-211, which is by far the best knownExpand
Constraints on changes in the proton–electron mass ratio using methanol lines
We report Karl G. Jansky Very Large Array (VLA) absorption spectroscopy in four methanol (CH3OH) lines in the z = 0.885 82 gravitational lens towards PKS1830-211. Three of the four lines have veryExpand
Robust constraint on a drifting proton-to-electron mass ratio at z=0.89 from methanol observation at three radio telescopes.
A limit on a possible cosmological variation of the proton-to-electron mass ratio μ is derived from methanol (CH3OH) absorption lines in the benchmark PKS1830-211 lensing galaxy at redshift z=0.89Expand
Probing isotopic ratios at z = 0.89 : molecular line absorption in front of the quasar PKS 1830-211
With the Plateau de Bure interferometer, we have measured the C, N, O and S isotopic abundance ratios in the arm of a spiral galaxy with a redshift of 0.89. The galaxy is seen face-on according toExpand
...
1
2
3
4
5
...